The dual-channel memory format is the standard for high-end performance systems, and is the de facto packaging for most DDR memory. The "matched pair" format has become very popular, as these DDR module kits are perfectly suited for the requirements of high-end dual-channel DDR operation, and are a much safer buy than purchasing one module now and hoping to match it up later. The most popular configurations are currently the 2x512MB and 2x1GB kits (although 2x2GB are emerging) and with few exceptions, vendors offer the same basic speeds in matched pair DDR kits, as with their single module DDR.
It was a very similar story in the dual-channel DDR listings, and we found the same trends as in the single-module listings. There was only a single price cut, a $4 drop to the Kingston HyperX PC3200 2x1GB kit, but thankfully, the price increases weren't that much more prevalent. The largest was a $5 jump to the Corsair Value PC3200 2x1GB, and there were a few others in the $1-$4 range. This was certainly not an active period for matched pair DDR, but the overall chart movement still totaled an increase of $9.